.nav{
    width: 7.5rem;
    height: 2rem;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    z-index: 100 !important;
    // overflow: hidden;
    .nav-btn{
        width: 100%;
        height: 100%;
        padding: 0 .4rem 0 .4rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        transform: translateY(-0.2rem);
        li{
            height: .83rem + .45rem;
            width: .83rem;
            display: block;
            position: relative;
            img{
                display: block;
                width: .83rem;
                height: .83rem;
            }
            span{
                display: inline-block;
                font-size: .28rem;
                height: .45rem;
                width: .83rem;
                text-align: center;
                color: white;
                position: absolute;
                bottom: 0;
            }
        }
    }
}